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The August 5 installment featured American singer-songwriter Richard Marx as the legendary artist of the show. ALi was the third one up on stage with a cover of Richard Marx' "Endless Summer Nights". 

She expressed she was extremely nervous to be singing in front of Richard Marx, but he only had praise, saying, "Your rearrangement was good. I couldn't take my eyes off your performance."

Bonus Richard Marx performance:

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However, she wasn't able to defeat Kim Jo Han, who took the final win.